| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | J 5 Inc | Gas Operator | Nov 2014 | |
| 2 | J And D Evart Production LLC | Oil Operator | Jun 2025 | |
| 3 | J D B Energy LLC | Gas Operator | Nov 2016 | |
| 4 | J F C O LLC | Gas Operator | Dec 2019 | |
| 5 | J K R Oil And Gas Inc | Midland, TX BAD ADDR | Oil & Gas Operator | Jan 2003 |
| 6 | J&J Oil | La Vernia, TX 78121 | Oil & Gas Operator | Aug 2025 |
| 7 | Jaguar Energy LLC | Oil & Gas Operator | Jun 2022 | |
| 8 | Jennings Petroleum And Enveron Corp | Oil & Gas Operator | Mar 2017 | |
| 9 | Jennings Petroleum Corp | Oil & Gas Operator | Dec 1988 | |
| 10 | Jet Exploration 1995-1 LLC | Gas Operator | Jan 2000 | |
| 11 | Jet Exploration Inc | Oil & Gas Operator | May 1998 | |
| 12 | Jet Oil Corp | Oil & Gas Operator | Feb 1999 | |
| 13 | Jetta Operating Company Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2025 |
| 14 | Jonesville Ventures Inc | Oil & Gas Operator | May 1988 | |
| 15 | Jordan Development Company LLC | Traverse City, MI 49686 | Oil & Gas Operator | Jun 2025 |
| 16 | Jordan Energy Exploration Co LLC | Oil Operator | Dec 2022 | |
| 17 | Jupiter Oil Corp | Oil & Gas Operator | Jun 2025 |